The Danube Delta

The Danube Delta in Romania is the best-preserved river delta in Europe and the largest in size after the Volga Delta. Over 80% of its surface area is spread over Romania in Tulcea County. The rest is located in Ukraine. The Romanian part of the Danube Delta was included as a UNESCO World Heritage Site in 1991, and approximately 80% of its surface is strictly protected.


Visit in the Danube Delta this unique ecosystem that has become a refuge for numerous species of birds, fish, and amphibians. In the paradise of the Delta, the splash of oars pushed by fishermen with long beards and sun-withered faces is one of the few human-made sounds disrupting the silence of this untamed place, of this green island populated by thousands of wildlife species.


Wildlife in Danube Delta


Formation & history

The River Danube is Europe's second-longest river, and it springs from the Black Forest in Germany. It flows through 10 countries (Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, and Ukraine), and it spills into the Black Sea, mostly in the territory of Romania. The Danube Delta began forming roughly 6,000 years ago, in 4,000 BCE, in one of the bays of the Black Sea, when a barrier of sand generated by the rising level of the sea blocked the bay of the Danube River. Over time, the bay was filled with sediment, and the delta started advancing towards the Black Sea, building numerous successive branches (the St. George I Branch, the Sulina Branch, the Saint George II branch, and the Chilia/Kilia Branch).


Recorded history states that the Dacians inhabited the Danube Delta region until the Romans conquered the area, and the Goths later invaded it. The Danube Delta became part of the Ottoman Empire in the 15th century, and in 1812 the borders of the Ottoman and Russian Empires were set by the Branches of the delta. After the defeat of the Ottoman Empire, in 1878, the Delta was split between Romania and Russia, and it was included in UNESCO's Patrimony in 1991. In 1998, UNESCO's Programme on Man and the Biosphere included the whole Danube Delta as a biosphere reserve shared by both Romania and Ukraine.


Danube River splits in 3. The channels of the Danube are Chilia Arm (Bratul Chilia), Sulina Arm (Bratul Sulina), and Sfantu Gheorghe Arm (Bratul Sfantu Gheorghe).


Chilia Arm (Tulcea – Chilia Veche – Periprava), the youngest arm of the delta, is the northern arm of the Danube Delta and has a length of 111 km. Because the Danube Delta grows annually by approximately 40 m², for a century and a half ago, the Chilia arm forms a secondary delta. Chilia arm was,  in the Middle Ages, the main route of navigation in the Delta, and for this reason, was often disputed between the powers of the time.


Sulina Arm (Tulcea – Crisan – Sulina)  is the shortest and most straight arm of the Danube Delta.

The channel was dug between 1862 and 1902, this process reduced the length of the arm from 93 km to 64 km, doubling the volume of water. It requires permanent dredging works to be navigable for seagoing vessels. Sulina is as well is the most eastern place in Romania.


Sfantu Gheorghe Arm (Tulcea – Sfantu Gheorghe) is the oldest arm, carrying 22% of the volume of water. It is 112 kilometers long and carries 22% of the river's flow. Sfantu Gheorghe Arm also suffered some transformation in its length, shortening to 70 km of navigable water.




The Danube Delta Romania is part of the Pannonian steppe ecosystem of Eastern Europe, but the Delta itself hosts 23 natural ecosystems. Due to the vast amounts of wetlands, the aquatic environment dominates much of its surface, with terrestrial environments being present only on a couple of higher grounds.


Being situated on one of the major migratory routes, the Danube Delta provides perfect nesting and hatching conditions. It is thus a magnet for birds from six significant ecoregions of the world, including the Mongolian, Arctic, and Siberian.


Danube Delta


During summer, the Delta is home to over 320 species of birds, including the largest colony of pelicans, and over one million individual specimens winter here, including swans, wild ducks, and coots. This is also one of the last remaining places in Europe where wild horses roam free in the Letea Forest.


For the nature lovers, Danube Delta it's the perfect place to enjoy the diversity and the serenity.If you are passionate about bird watching and exploring the Danube Delta, here are a few birds species that you can see: lesser white-fronted goose (Anser erythropus), lesser spotted eagle (Clanga pomarina), common sandpiper (Actitis hypoleucos), short-eared owl (Asio flammeus), dalmatian pelicans (pelicanus crispus), great white pelican (pelecanus onocrotalus), squacco heron etc.


Besides the numerous species of birds and animals, the Danube Delta natural reserve is also inhabited by around 20,000 people. And almost 5,000 live in the port-town of Sulina. The rest of the inhabitants are scattered among 27 villages, of which only three are inhabited by more than 500 people. This accounts for an average density of 2 inhabitants per square km.


Amidst the expanse of reeds, the fishermen have built fishing villages, inhabited to this day by people who have learned to live with meager resources, surrounded by waters. For them, fish is a staple diet, but it is prepared in dozens of ways, capable of delighting the most sophisticated of connoisseurs.


Out of the ten countries crossed by the Danube, Romania is by far the most privileged one, as it hosts Europe's last natural paradise: a delta formed at the meeting point of three tributaries, just before the river empties into the Black Sea. The entire area boasts an astonishing diversity in terms of wildlife and landscapes of unmatched beauty.


Thanks to our Delta, Romania's tourist and scientific potential is enhanced. In fact, since 1991, the Danube Delta Biosphere Reserve has been listed as a world heritage site.


Danube Delta Biosphere


What makes the Danube Delta one of a kind?

  • The forests of Letea Village and Caraorman are the only areas in Europe where we still encounter tropical creepers. Moreover, the seeds of exotic plants brought by migratory birds all the way from Africa and have added an exotic touch to the landscape. Now, the lush vegetation looks like a small-scale jungle.
  • The richness of the Danube Delta area doesn't strictly refer to its natural richness, but also to its historical heritage. Numerous archaeological sites existing today (Roman forts and ruins of Greek, Byzantine, or Getic fortresses) give this realm a legendary dimension.
  • The Danube Delta is the largest and most compact reed area on Earth.
  • One of the strangest plants from the Danube Delta is ''Noctiluca miliaris''. An aquatic plant whose fluorescent color conveys the effect of magical water, this is why people call it the “sea-candle”.


Danube Delta Tour

Photo source: RomaniaTV.Net


You can visit Danube Delta on a day tour from Tulcea or have a full experience on a four days trip from Bucharest.

For Danube Delta Boat Transportation, you can check this website.


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